Task-specific ionic liquid catalyzed efficient microwave-assisted synthesis of 12-alkyl or aryl-8,9,10,12-tetrahydrobenzo[a]xanthen-11-ones under solvent-free conditions

2011 ◽  
Vol 4 (3) ◽  
pp. 205-209 ◽  
Author(s):  
Dhiman Kundu ◽  
Adinath Majee ◽  
Alakananda Hajra
Keyword(s):  
Ionic Liquid ◽  
Solvent Free ◽  
Microwave Assisted Synthesis ◽  
Microwave Assisted ◽  
Solvent Free Conditions ◽  
Task Specific Ionic Liquid

Microwave-assisted synthesis of quinolones and 4H-1,4-benzo thiazine 1,1-dioxides

2005 ◽  
Vol 2005 (1) ◽  
pp. 27-28 ◽  
Author(s):  
Jaime Charris ◽  
Arthur Barazarte ◽  
José Domínguez ◽  
Neira Gamboa
Keyword(s):  
Microwave Irradiation ◽  
Rapid Method ◽  
Solvent Free ◽  
Microwave Assisted Synthesis ◽  
Microwave Assisted ◽  
Solvent Free Conditions

A rapid method for the preparation of N-aryl-2-methylthio-4-oxo-1,4-dihydro quinoline-3-carbonitriles (2a–e) and N-aryl-3-methylthio-4H-1,4-benzothiazine-2-carbonitrile 1,1-dioxides (2f–o) is reported. The cyclization is accelerated by microwave irradiation under solvent free conditions in the presence of K2CO3.

scholarly journals Microwave-assisted synthesis under solvent-free conditions of (E)-2-(Benzo[d]thiazol-2-yl)-3-arylacrylonitriles

2011 ◽  
Vol 22 (12) ◽  
pp. 2396-2402 ◽  
Author(s):  
Jorge E. Trilleras ◽  
Kelly J. Velasquez ◽  
Dency J. Pacheco ◽  
Jairo Quiroga ◽  
Alejandro Ortíz
Keyword(s):  
Solvent Free ◽  
Microwave Assisted Synthesis ◽  
Microwave Assisted ◽  
Solvent Free Conditions

ChemInform Abstract: Microwave-Assisted Synthesis of Amide under Solvent-Free Conditions.

ChemInform ◽  
2008 ◽  
Vol 39 (34) ◽  
Author(s):  
Xiao-Jian Wang ◽  
Qian Yang ◽  
Fei Liu ◽  
Qi-Dong You
Keyword(s):  
Solvent Free ◽  
Microwave Assisted Synthesis ◽  
Microwave Assisted ◽  
Solvent Free Conditions

Microwave-Assisted Synthesis of 3-Methyl-1-phenylchromeno[4,3-c]pyrazol-4(1H)-ones under Solvent-Free Conditions

Heterocycles ◽  
2013 ◽  
Vol 87 (6) ◽  
pp. 1327 ◽  
Author(s):  
Cui-Lian Xu ◽  
Guo-Yu Yang ◽  
Jing-Tian Yang ◽  
Cai-Xia Wang ◽  
Su-Fang Fan ◽  
...  
Keyword(s):  
Solvent Free ◽  
Microwave Assisted Synthesis ◽  
Microwave Assisted ◽  
Solvent Free Conditions

An efficient microwave-assisted synthesis of thieno[2,3- b ]quinolines under solvent-free conditions

2005 ◽  
Vol 26 (4-5) ◽  
pp. 373-379 ◽  
Author(s):  
Belalakatte P. Nandeshwarappa ◽  
Doyijode B. Aruna Kumar ◽  
Halehatty S. Bhojya Naik ◽  
Kittappa M. Mahadevan
Keyword(s):  
Solvent Free ◽  
Microwave Assisted Synthesis ◽  
Microwave Assisted ◽  
Solvent Free Conditions

Microwave-assisted synthesis of 1,4-disubstituted thiosemicarbazides and semicarbazides under solvent-free conditions in the absence of catalyst

2005 ◽  
Vol 2005 (1) ◽  
pp. 71-72 ◽  
Author(s):  
Xi-Cun Wang ◽  
Zheng-Jun Quan ◽  
Zheng Li
Keyword(s):  
Microwave Irradiation ◽  
Solvent Free ◽  
Microwave Assisted Synthesis ◽  
Microwave Assisted ◽  
Solvent Free Conditions

Thirty-two 1-aroyl/aryloxyacetyl-4-(2-furoyl)thiosemicarbazides and corresponding semicarbazides were synthesised in excellent yields under microwave irradiation and solvent-free conditions without using any catalyst.

A solvent-free protocol for the green synthesis of arylalkylidene rhodanines in a task-specific ionic liquid

2010 ◽  
Vol 88 (6) ◽  
pp. 514-518 ◽  
Author(s):  
Abdolhamid Alizadeh ◽  
Mohammad M. Khodaei ◽  
Ali Eshghi
Keyword(s):  
Ionic Liquid ◽  
Green Synthesis ◽  
Carbonyl Compounds ◽  
Catalytic Effect ◽  
Knoevenagel Condensation ◽  
Solvent Free ◽  
Detailed Mechanism ◽  
Solvent Free Conditions ◽  
First Time ◽  
Task Specific Ionic Liquid

2-Hydroxyethylammonium formate acts as a task-specific ionic liquid (TSIL) for the Knoevenagel condensation of carbonyl compounds with rhodanine to afford arylalkylidene rhodanines under solvent-free conditions and in good-to-excellent yields. Additionally, compared with those in organic solvents, the yields obtained in the presence of our ionic liquid (IL) were significantly increased. The detailed mechanism of the catalytic effect of TSIL is also reported for the first time.

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